Luminaire



M. E. KECK July 10, 1962 LUMINAIRE 5 Sheets-Sheet 1 Filed July 26, 1957INVENTOR Merle E. Keck WW ATT NEY July 10, 196 M. E. KECK 3,043,950

LUMINAIRE Filed July 26, 1957 3 Sheets-Sheet 2 l 78 76 72 ll '2' 58Fig.4.

M. E. KECK July 10, 1962 LUMINAIRE 3 Sheets-Sheet 5 Filed July 26, 1957Fig.6.

United States Patent 3,043,950 UMIN' poration of Pennsylvania Filed July26, 1957, Ser. No. 674,397 17 Claims. (Cl. 240-25) The present inventionrelates to structural features of a lighting fixture or luminaire andmore particularly to a luminaire of the character described for use instreet lighting applications.

Previously proposed luminaires employed for the aforementioned purposeand other exterior applications have been particularly subject to theentry of insects, dust, and other foreign matter. On the other hand,those luminaires which were relatively sealed against the entry offoreign matter were diflicult to disassemble for replacement of lightingsources or for purposes of wiring or rewiring as the need arose. Morespecifically, such luminaires required the use of special tools andpermanent fastening devices and the like in order to assemble anddisassemble the component parts thereof.

Prior luminaires of this type suffered from the further disadvantagethat the reflector and lamp holder and other component parts thereof aswell as their physical size prevented the use of differing sizes oflight sources therefor. Moreover, the lamp holder frequently has beenarranged in these prior devices with the electrical terminals thereofdisposed inwardly of the reflector in order to facilitate wiring of theluminaire. This arrangement is disadvantageous in that the exposedwiring terminals presented an electrical shock hazard to personnelengaged in replacing the light source or in other maintenance activityconnected with the luminaire.

An additional disadvantage of previously proposed luminaires or lightingfixtures is created by the fact that electrical conduits of two or moresizes are standard for use in supporting the luminaire and forconducting the electrical leads thereto. Presently used conduits are 2inches and 1%. inches, respectively, and accordingly, in order toadequately seal prior luminaires, it was necessary to adapt the same foruse with only one or the other of the aforesaid conduits. Therefore,luminaires constructed in this fashion were of limited usage in that inmost cases separate or additional housings were required in order toaccommodate the respective standard conduits.

In view of the foregoing, a novel and efficient luminaire or lightingfixture is contemplated by the invention.

It is intended that such luminaire be provided with means forsegregating or shielding the light source thereof from the electricalwiring and terminals.

It is also intended that a single luminaire be provided with means foradapting it to one of a plurality of standard electrical Wiringconduits.

It is further contemplated by the invention that the luminaire beprovided with means for substantially sealing the optical system thereofagainst the entry of insects, dirt and other foreign matter.

Means for facilitating access to and wiring of the lumniaire is anotherobject of the invention together with means for providing theaccommodation of differing sizes of light sources to the luminairearrangement.

These and other objectives, features and advantages of the inventionwill become apparent during the ensuing description of exemplary formsthereof, with the description being taken in conjunction with theaccompanying drawings, wherein:

, FIGURE 1 is a perspective view of a luminaire or lighting fixturecontemplated by the invention and ar- 3,043,950 Patented July 10, 1952"ice ranged in this example for use in street lighting appilcations;

FIG. 2 is a partial, longitudinally sectional view showing the conduitend portion of the luminaire of FIG. 1;

FIG. 3 is an end elevational view of the luminaire portion illustratedin H6. 2;

FIG. 4 is a partial, longitudinally sectional view of the latching andreflector retaining arrangement of the luminaire illustrated in FIG. 1;

FIG. 5 is a partial bottom plan view of the aforesaid luminaire takenalong reference lines V-V of FIG. 4; and

FIG. 6 is a partial, longitudinally sectional view of the conduit endportion of the luminaire of FIG. 1 but showing an internal adaptation,relative to the lampholding means thereof to permit usage of a differentsize of light source.

in accordance with the invention, a luminaire or lighting fixture isprovided with means for accommodating the fixture for use with diiferingsizes of wiring conduits which conduit is thus arranged for supportingthe lighting fixture. The conduit adapting means is further arranged topermit facile leveling or alignment of the lighting fixture relative tothe disposition of. the conduit. The luminaire is further provided withmeans associated with the reflector or optical system thereof foraccommodating lamp holders of different sizes in order that assortedsizes of lighting sources can be utilized therewith. Additional meansare provided for detachably securing the reflector of the luminaireWithin its housing in a manner that the same can be removed wthout theuse of tools or without disassembling any sort of fastening meanstherefor. Further, in accordance with the invention, the supportingmember for the refractor of the luminaire is furnished with means forfacilitating access to the wiring and terminal compartment of theluminaire and for securing the refractor mounting member with a minimumof component parts.

Referring now more particularly to FIGS. 1 to 5 of the drawings, theexemplary form of the invention illustrated therein comprises a lightingfixture having a genera'lly ovate housing It) furnished with a bottomopening 11. The housing ltl presents an inverted substantially U-shapedhood member terminating in a conduit receiving end portion 12. Arefractor assembly 14 is attached to the housing ltl. As better shown inFIGS. 2 and 4 of the drawings, an inverted bowl-shaped optical reflectorassembly 16, likewise having a bottom opening, is inserted within thehousing 10 and generally conforms to the interior walls thereof but forthe most part is spaced therefrom. The rearward end of the reflector 16is provided with an aperture 18, removed from its aforesaid opening,through Which a projecting portion 20 of a lamp holder assembly 22 isinserted. The lamp22 is arranged for providing electrical contact to :alighting source indicated generally by the reference character 24 andinsorted in the lamp holder. The lamp holder, in turn, is mounted withinthe housing 10 by means of a bracket 26 secured to a pairo-f suitablydisposed projections 28 of the housing 10 by means of conventionalfastening means, for example, the screws 30. The bracket 26 terminatesin a generally U-shaped configuration disposed more or less at rightangles to the body portion of the bracket. The legs 32 of the U-shapedbracket portion are arranged to straddle the lamp holder 22 and aresecured thereto by suitable fastening means, for example, bolts 34.

When thereflector 16 is positioned as illustrated in FIGS. 2 and 4, itseats against a collar portion 36 of the lamp holder and the aperture 18of the reflector 16 is sealed by engagement of adjacent portions of therefiec tor 16 with a generally circular gasket 38 of a compresthedrawings, is supported relative to the housing by means of a singlespring 40. This spring is secured to the housing 10 with a mountingscrew 42. inserted through its lower end. The upward end of the spring4%) projects inwardly and upwardly of the housing 18 in order toprovvide limited movement thereof relative to the housing wall. Theupward extremity of the spring 40 is bent over slightly in order tofaciiltate engagement thereof with a dimple 44 formed in the associatedend portion of the reflector 16. i

" The dimple 44 is so arranged that, when engaged with the spring .40, abottom flange portion 46 of the reflector 16 seats against the bottomextremity of the housing wall,

as indicated by the reference character 48 (FIG. 4). The

aforesaid reflector flange 46 extends entirely around the bottom openingof the reflector and is provided with sufficient width to engage theaforementioned housing wall at the entire periphery of the opening 11 ofthe hous ing 10 except, of course, where the latter joins andcommunicates with the conduit section 12. It is contemplated that thespring 40 is to be provided with sufficient bias 7 that reflector 16will be urged rearwardly, when the spring engages the dimple 44 thereof,such that the reflector 16 will seat against the lamp holder 22 andassociated gasket 28 with suflicient force to effect a seal between thereflector 16 and the lamp holder collar 36.

A refractor 50 adapted for use with the luminaire is equipped adjacentits top opening with a similarly arranged flange portion 52 extendingaround its aforesaid opening. The refractor flange 52 is urged to engagedirectly the reflector flange 46 when the refractor 50 is mounted in theluminaire or lighting fixture by means presently to be described. Inorder to seal the optical system of the luminaire, which systemcomprises the refractor 50 and the reflector 16, an oval gasket 54 of amaterial similar to that of gasket 38 is inserted between the respectiveflanges 46 and 52 of the reflector '16 and the refraotor 50.Accordingly, a sealed optical system is provided by utilizing theaforesaid gasket 54 and the provided with rearwardly extending wiringterminals 56 due to the fact that the open bottomed hood member whichterminates in container portion 12 is readily accessible, as describedpresently, for purposes of making the 60 and 62, which are fabricated inthis example of the invention, integrally with the container 12. Theupward portions of the ribs 60 and 62 are cooperatively curved to forman arcuate configuration, as indicated by the reference character 64,which configuration is thus adapted to enclose partially an electricalwiring conduit 66 or 68 inserted into the container portion 12. Whenthus positioned, the extent to which the conduit 66 or 68 is inserted isdetermined by a suitably spaced stop 70 likewise formed integrally witha wall section of the container 12. The top surface of the conduit 66 or68, then, can be engaged by a pair of leveling screws 72 and 74 whichare threaded through respective spaced, tapped apertures 76 and 78extending through the top wall of the container 12 adjacent the outwardend thereof. These leveling screws 72 and 74 cooperate with suitableclamping means for securing the luminaire to the end portion of thewiring conduit 66 or 68 and for longitudinally aligning the luminairetherewith.

One form of such clamping means arranged for cooperating with the inwardleveling screw 74 comprises an inverted yoke 80 of generally U-shape incross section and arranged to be drawn upwardly into contact with bottomportions of the conduit 66 or 68 by the clamping I Another clampingmeans arranged here for coopera-- tion with the outer leveling screw 72is provided in the form of a bracket 88 or 90 as better shown in FIG. 3of the drawings. The bracket 88 is provided with an inverted yokeportion 92 having an arcuate configuration arranged to engage closelythe larger of the wiring conduits 66. "On the other hand, the bracket 90shown in dashed outline in FIG. 3 similarly is provided with an invertedyoke portion but is shaped to engage closely the smaller of the Wiringconduits 68. Each of the brackets 88 or 90 is provided in this examplewith four apertures which are arranged for alignment with similarlyspaced tapped holes 94 provided in the inwardly extending ribs 60 and 62of the container 1 2. Accordingly, either one of the brackets 88 and 90,dependingon which conduit 66 or 68 is employed, can be secured to theribs 60 and 62 and disposed outwardly thereof by means of mountingscrews 96.

When the bracket 88 or 90 is thus secured in position by the mountingscrews 96, the leveling screw 72 is then tightened to clamp the conduit66 or 68 between the screw 72 and the yoke portion of the respectivebracket. When thus secured in position, the leveling screw 72 serves asa pivot about which the conduit 66 or 68 or the housing 10 of theluminaire can be rotated slightly, after first loosening the levelingscrew 74 and the yoke 80, for purposes of alignment. When the properalignment is determined, the leveling screw 74 and the associatedclamping yoke 80 are then retightened to preserve the desired positionof alignment of the luminaire with its supporting conduit 66 or 68.

As better shown in FIGS. 2 and 3 of the drawings, each bracket 88 or 90terminates a pair of spaced, pin receiving/cradles 98 and 1080fgenerally -U-shaped configuration, the lowermost portion of which ismore or less flush with the lower extension 102 of the wall of thecontainer 12. These cradles are adapted to receive and seat the hingepins 114, presently to be described. It is contemplated that additionalbrackets similar in structure to that of the brackets 88 or 30 can beprovided for conduit sizes other than those of the conduits 66 or 68. 8

Referring once again to FIGS. 2 and 4 of the drawings,

one form of refractor retaining member 104 is illustrated therein. Theretaining member comprises a refractor engaging ring 166 having anarcuate or oval configuration conforming generally to and closelyfitting with the outer periphery of the refractor 50 adjacent itsopening. The ring 106 is split for purposes pointed out hereinafter andis equipped with an inwardly extending flange 108 coextending with theperiphery thereof and arranged toenagainst the gasket 54 and thereflector flange'46 extending,

as aforesaid, around the periphery of the refractor flange 52. With thissealing arrangement, a dust-free optical system including the reflector16 and the refractor 50 is obtained.

Joined to the refractor ring 106 of the retaining member 104 is acontainer closure section 1 which, when the retaining member is in itsaforesaid operative position, forms a bottom wall of the wiringcontainer portion 12. The closure section 110, as better shown in FIG. 1of the drawings, is formed with a contour conforming substantially withthe side wall extensions 1112 of the container 12 and in addition formsa relatively close fit therebetween in order to minimize the entry offoreign matter into the wiring container portion 12. The closure section110 of the mounting member 184 is equipped adjacent its outward end witha transversely extending rib 112 which, in turn, terminates at eitherend in a pair of hinge pins 114. Lateral support is provided to the rib1 12 by a longitudinally extending rib 116 bridging an upturned portion118 of the closure section 110. An additional longitudinal rib 119desirably is provided on the upward surface of the closure section 110in order to impart structural strength thereto.

In the operation of the retaining member 104, the hinge pins .114thereof are cradled respectively in the pin retaining cradles 98 and 100of the bracket 88 or 90, as noted heretofore. The pin cradles 98 and 100are so formed that when the retaining member 104 is in itsfully openposition, that is to stay, when it is disposed at a substantial angle tothe longitudinal axis of a luminaire, it can be completely removed fromthe luminaire by raising the retaining member slightly so that the hingepins 114 and the rearward extremity 120 of the closure section 110 canbe lifted over the upper extremities of the terminal legs 122 of the pincradles 98 and 103, as shown in FIG. 2 of the drawings. When theretaining member 104 is thus removed or when it is disposed in its fullyopen position as aforesaid, the wiring and the associated terminals 56,as well as the yoke clamping screws 82 are fully accessible foradjustment, maintenance or repair as the case may be.

When the retaining member 104 is disposed in its operative positionwhere at the refractor 50 is sealed to the reflector 16 as aforesaid, alatching arrangement is provided at the front end of the refractor ring1116 in order to secure this portion of the retaining member in theaforesaid operative position. As better shown in FIG. 4 of the drawings,the latching arrangement includes a latching lever 124 pivotal-1ysecured to a mounting bracket 126 on the housing 10. Desirably themounting bracket 126 is provided with a tapped hole into which the screw42 employed in mounting the spring 40 is threaded for the purpose ofsecuring both the spring 40 and the mounting bracket 126 to the adjacentwall portion of the housing 10. Latching lever 124 is generally U-shapedin section, and a pivot pin extends through the sides thereof adjacentthe upward end of the latching lever 124, where an inwardly projectingportion 128 is formed, and into openings in the bracket 126 whereby thelatching lever 124 is pivoted to the mounting bracket 126. A suitablespring means 130 is associated with the aforesaid pivot in order to biasthe latching lever 124 clockwise to its latching position.

As better shown in FIG. 5 of the drawings, a suitable catch mechanism isincluded for cooperation with the aforedescribed latching mechanism 124.In this example of the invention, the catch mechanism, indicatedgenerally by the reference character 132, is adapted for use with asplit refractor ring 106 provided with a gap 134 therein at a positionadjacent the catch mechanism 132. Thus, the catch mechanism 132 includesa pair of spaced outwardly extending prongs 136 secured individually toeach extremities of the split ring 106. The clamping bolt 138 isinserted through a pair of aligned apertures disposed individually inthe prongs 136 for the purpose of determining the =width of the gap 134and consequently the tightness of the retaining ring 106 relative to therefractor 56. In furtherance of this purpose, the extremities of thesplit refractor ring 106 are initially biased apart to a limited extent.For engagement with the prongs 136, the latching lever 124 is providedwith an inwardly extending transverse projection 140 which, in turn, isprovided with one or more indents 142 arranged to seat the nibs 144formed on the underside of the prongs 136.

The rearward end of the retaining ring 106 is biased into engagementwith the refractor flange 52 and the reflector flange 46 by meansassociated with the closure section 116 of the retaining member 104. Infurtherance of this purpose, a fiat spring 146, as better shown in FIG.2 of A the drawings, is secured adjacent the rearward end 120 of theclosure section 110. The spring 146 is secured to the closure section111 by a screw 148 and is furnished at its outward or rearward extremitywith a section 150 extending outwardly and rearwardly of the closuresection end portion i126. The section 1543 of the spring 146 engages aninward extremity 152 of the bracket 38 or 90, and accordingly, when therefractor ring 106 is moved from an open position to a position adjacentits latched posit-ion, operates to raise the hinge pins 114 a shortdistance above the lowermost inner portion 154 of the pin retainingcradles 98 and 1110, respectively, as better shown in FIG. 3 of thedrawings.

However, when the retaining member 1114 and its refractor ring 166 aremoved to their operative position whereat the flanges 46 and 52 of thereflector 16 and the refractor 50 respectively are tightly engaged withthe gasket 54 inserted therebetween, the leverage induced at therearward portions of the aforesaid flanges when the frontal portionsthereof are secured by the latching means described in FIG. 4, tends toflex the flat spring 146, and to move hinge pins 114 secured to theclosure section 111) toward the bottom portions of the pin cradles 98and 1%, respectively. However, this movement of the pins 114 applies thebiasing force of the flexed spring 146 to the aforesaid rearwardportions of the refractor and reflector flanges. Thus, additionalbiasing force is applied tothe sealing gasket 54 inserted between thereflector 16 and the refractor 50 in order to ensure a dust-free opticalsystem.

Referring now more particularly to FIG. 6 of the drawings, anarrangement is shown therein for accommodating a relatively largerlighting source than that discussed in connection with FIG. 2. In thislatter form of the invention, the mounting bracket 26 is substantiallysimilar to the mounting bracket 26 of FIG. 2 but is mounted in areversed position. A lamp holder or socket 22 is secured to the legs 32of the bracket 26' in a manner similar to the mounting arrangementillustrated in FIG. 2. When mounted in this fashion, the lamp holder 22is spaced rearwardly from an aperture 16!) of the reflector 16 but isdetachably sealed thereto by means presently to be described. With thisarrangement a relatively longer or larger lighting source, indicatedgenerally by the reference character 162, can be inserted in the socket22. such that a portion of the non-light-emitting segment thereof isinserted through the aperture of the reflector 16- in order properly toengage the lamp holder or socket 22.

One form of the aforementioned detachable sealing means includes ahollow frusto-conical section 164 which is secured to the reflector 16'in communication with the aperture 160 thereof. The rearward end of thefrustoconical section terminates in an inwardly extending substantiallycircular flange 166. The flange 166 thus is arranged to fit relativelyclosely with the projecting portion 20 of the lamp holder 22' andthereby aids in sup porting the adjacent end of the reflector 16. Infurtherance of this purpose, the frusto-conical section 164 is rigidlysecured, in this example, to the reflector 16 adjacent-the aperture 160thereof by meansof the rolled over edge portions indicated generally bythe reference character 168. When 'ghe reflector 16 is arranged in itsoperaitive position,the rearward biasing force applied thereto bythespring 40 (FIG. 4) urges the flange 166 of the .frusto-conicalsection against the sealing gasket 38 in serted between the collarportion 36 of the lamp holder and the flange 166 of the frusto-conicalsection 164. It is contemplated that a frusto-conical section (notshown) of a differing-relative axial length than that illustrated inFIG. 6 can be provided for accommodating in cooperation with a differentsized mounting bracket (not shown) and a lighting source of another sizethan that of the sources 162 or 24, within the structural limits of theluminaire housing 10 and wiring container portion 12.

From the foregoing it willbe apparent that novel and eflicient forms ofa street lighting fixture or other type of luminaire have been disclosedherein. As indicated heretofore, the luminaire contemplated by theinvention is adapted for assembly and disassembly within a minimum oftime and effort and with a relatively small number of component parts.Although the novel features of the lighting fixture according to theinvention have been discussed primarily in conjunction with a luminairefor street lighting applications, it will be apparent that one or moreof these features can be adaptedwith equal facility for use in othertypes of lighting fixtures.

Therefore, numerous modifications of the invention will occur to thoseskilled inthe art without departing from the spirit and scope of theinvention; Moreover, it is to be understood that certain featuresthereof can be employed without a corresponding use of other features.

Accordingly, what is claimed as new is:

1. In a luminaire, the combination comprising a housing having a bottomopening, a reflector having a bottom opening mounted in said housing andbeing generally similarly shaped relative to said housing, said rerector having an outwardly extending flange secured thereto at a positionadjacent its opening, said flange being engageable with said housing atsaid housing opening, a slipfitter and wiring container portion with anopen bottom secured to said housing and communicating therewith, saidreflector having an aperture therein communicating with said containerportion, lampholding means mounted within said container portion andextending through said aperture in an adjacent portion of saidreflector, sealing means mounted on the periphery of said lampholdingmeans extending through said aperture, said sealing means having a flatradial side por-tiorrwhich abuts against the reflector when saidlampholding means is in its operative position so as to seal saidaperture, a refractor having an upward opening and an outwardlyextending flange adjacently surrounding said opening, said reflector andrefractor flanges being substantially coextensive, gasketing meansdisposed betweensaid flanges, and means for clamping said flangestogether, with said gasketing means compressed therebetween and adjacentto said housing opening so as to seal said refractor to said reflector.

2. A luminaire comprising a housing having a bottom opening, a reflectorhaving a bottom opening and mounted within said housing, a slipfitterand wiring container portion projecting from said housing and having anopen bottom, said reflector having an aperture formed therein at aposition adjacent said container portion, lampholding means mountedwithin said container portion and having a socket part thereof extendingthrough said aperture, sealing means located between said reflector andsaid lampholding means, a reflector retaining spring secured to aportion of said housing at a position generally opposite from saidlampholding means, means on said reflector for detachably engaging saidspring, said spring when engaging said reflector urging said reflectoragainst said sealing means and said lampholding means so as to seal thejunction between the reflector and the lampholding means at saidaperture, a container cover hingedly mounted to the .bdttom of saidcontainer portion, a refractor retaining ring secured to said containercover and pivotal therewith, a refrac'tor having an upper openinggenerally conforming to the bottom opening of said reflector, saidrefractor being mounted in the retaining ring, mating flanges aroundboth the openings of said reflector and refractor, and means disposed toengage said ring at a position generally opposite from said containercover for securing said cover and said ring in their operative closedpositions so that said mating flanges and said aperture sealing meansserve to provide a sealed optical system and the bottom of saidslipfitter and wiring container portion is closed by said cover.

3. In a luminaire, the combination comprising an ovate shaped housingprovided with a bottom opening, an ovate shaped reflector having abottom opening and being secured Within said housing, a slipfitter andwiring container portion joined to said housing and communicatingtherewith, said container portion having a bottom opening, a refractorhaving an upper opening generally coextensive with the bottom opening ofsaid reflector, a refractor retaining ring combined with a containerportion bottom closure, mating meansadjacent the peripheries of bothsaid reflector and said refractor, said refract-or mounted in theretaining ring, said closure being hingedly secured to said containerportion at the outermost remote end, and means on a section of said ringopposite from said closure for detachably securing said ring to saidhousing so that when said luminaire is in its operative position saidrefractor is mated with said reflector and the bottom opening of saidslipfitter and wiring container portion is closed.

4. In a luminaire, the combination comprising a housing provided with abottom opening, a reflector having a bottom opening and being detachablysecured within said housing, a slipfitter and wiring container portionjoined to said housing and communicating therewith, said containerportion having a bottom opening, a refractor having an upper openinggenerally coextensive with the bottom opening of said reflector, arefractor retaining ring combined with a container bottom closure, saidrefractor being mounted in the retaining ring, mating flanges around theperipheries of the openings of both said reflector and said refractor,said closure 1 being bingedly secured to said container portion, meansdisposed to engage said ring at a position oppositefrom said closure fordetachably securing said ring and said closure in their operative closedposition so that said refractor is mated with said reflector and thebottom opening of said slipfitter and wiring container portion isclosed, and flat spring biasing means located on the inner side of thecontainer bottom closure for urging the adjacent section of saidretaining ring and its mounted refractor into engagement with saidreflector at said operative position.

5, In a luminaire, the combination comprising a housing provided with abottom opening, a reflector having a bottom opening and being detachablysecured within said housing, a slipfitter and wiring container portionjoined to said housing and communicating therewith, said containerportion having a bottom opening, a refractor having an upper openinggenerally coextensive with the bottom opening of said reflector,arefractor retaining ring combined with a container portion bottomclosure, said refractor being mounted in the retaining ring, matingflanges around the peripheries of the openings of both said reflectorand said refractor, said closure being bingedly secured to the outermostend of said container portion, means associated with a section of saidring opposite from said container portion for detachably securing saidring in its operative position so that said refractor is mated with saidreflector and the bottom opening of said container portion is closed,and flat spring biasing means located on the inner side ofsaid Wiringcontainer for urging the adjacent section of said retaining ring and itsmounted refractor into engagement with said reflector at said operativeposition, said hinged mounting including a pair of hinge pins secured tosaid bottom closure and a pair of pin retaining cradles secured to saidcontainer portion, said pins being freely mounted'within said cradles.

6. In a luminaire, the combination comprising a housing provided with abottom opening, a reflector having a bottom opening and being detachablysecured within said housing, a slipfitter and wiring container portionjoined to said housing and communicating therewith, said containerportion having a bottom opening, a refractor having an upper openinggenerally coextensive with the bottom opening of said reflector, meanson said reflector and refractor for sealing the peripheries of theopenings of said reflector and refractor together when the luminaire isin its operative position, a refractor retaining ring combined with acontainer portion bottom closure, said refractor being mounted in theretaining ring, said closure being hingedly secured to said containerportion, means associated with a section of said ring opposite from saidclosure section for detachably securing said ring in its operativeposition so that said refractor is engaged and sealed with saidreflector and the bottom opening of said container portion is closed,and biasing means located on said container portion for urging theadjacent section of said retaining ring and its mounted refractor intoengagement with said reflector at said operative position, said biasingmeans including flat spring means secured to the inner portion of saidcontainer closure and cooperating with a projection secured to atransverse wall of said container portion for urging said closureupwardly at the operative position of said closure and retaining ring.

7. In a luminaire, an ovate shaped housing having a bottom opening, anovate shaped reflector having a bottom opening and readily detachablymounted within said housing, an aperture formed in said reflector,lampholding means mounted adjacent said reflector within said housing,said lampholding means protruding through said aperture in saidreflector and supporting one end of said reflector, and spring meansengageable with a portion of said reflector generally opposite from saidaperture for detachably securing another end of said reflector withinsaid housing.

8. In a luminaire, the combination comprising an ovate shaped housinghaving a bottom opening, an ovate shaped open bottom reflector readilydetachably mounted in said housing, an aperture formed in saidreflector, lampholding means mounted in said housing and extendingthrough said aperture in said reflector for supporting one end of saidreflector, reflector sealing means located between the reflector and thelampholding means, and spring means mounted within said housing at aposition generally opposite said reflector aperture, said spring meanscooperating with an indent formed in an adjacent portion of saidreflector for detachably securing another end of said reflector withinsaid housing and for unging said reflector against said reflectorsealing means to seal said reflector aperture with said lampholdingmeans.

9. In a luminaire, the combination comprising a housing having a bot-tomopening, a reflector having a bottom opening and readily detachablymounted within said hous ing, an aperture formed in said reflector,lampholding means mounted adjacent said reflector within said housing,said lampholding means protruding through said aperture in saidreflector and supporting one end of said reflector, reflector sealingmeans located between the reflector and lampholding means so as to sealthe junction between the reflector and the lampholding means at saidaperture, and spring means engageable with a portion of said reflectorgenerally opposite from said aperture for detachably securing anotherend of said reflector within said housing.

10. In a luminaire, the combination comprising an ovate shaped housingprovided with a bottom opening,

an ovate shaped reflector having a bottom opening and mounted withinsaid housing, an aperture formed in said reflector, a lighting sourcesupporting means mounted within said housing adjacent said apertureformed in said reflector, a generally tubular section secured to saidreflector and communicating with said reflector aperture, said sectionextending to said supporting means for engagement, an opening in theouter. end of said tubular section, a sealing means located adjacentsaid tubular section opening between said reflector and said lightingsource supporting means, and means detachably engageable with a portionof said reflector generally opposite from said aperture for removablysecuring said reflector within said housing and for urging saidreflector and said tubular extension towards said supporting means toengage said reflector sealing means so as to seal the junction betweensaid tubular extension and said supporting means at said tubular sectionopening.

11. In a luminaire, the combination comprising an ovate shaped housingprovided with a bottom opening, an ovate shaped reflector having abottom opening and readily detachably mounted Within said housing, aslipfitter and wiring container portion joined to said housing andcommunicating therewith, said reflector having an aperture formedtherein at a position adjacent said portion,

a hollow section secured to the reflector in communication with saidaperture and extending outwardly from said reflector into said portion,inturned flange means on the end of said section spaced from thereflector, lampholding means mounted in said portion so as to have asocket part thereof extending into said end of the section and haveanother part thereof including a sealing means abutting the inturnedflange means of said section when in an operable position, and resilientmeans detachably engageable with a portion of said reflector generallyopposite from the apertured end thereof for removably securing saidreflector within said housing and tor urging said reflector and saidsection towards said lampholding means to engage said sealing means.

12. In a luminaire for street lighting employing a source of lightsupported at one end and supplied from a power source, in combination, arefractor, an inverted bowlshaped reflector sealed with the refractor,said reflector having an opening in one end thereof, an invertedgenerally U-shaped hood member located adjacent said one end of saidreflector and extending outwardly therefrom, a socket for the lightsource mounted in and sealing said opening in the reflector, andterminals carried by the socket for connecting it to the power source,said ocke being located inside the reflector and the terminals beinglocated outside the reflector for ready engagement with glectric wiringleads extendible through said hood mem- 1 er.

13. In a luminaire, the combination comprising an ovate shaped housinghaving a bottom opening, :an ovate shaped open bottom reflector readilydetachably mounted in said housing, an aperture formed in saidreflector, lampholding means mounted in said housing and extendingthrough said aperture and supporting one end of said reflector,reflector sealing means located between the reflector and thelampholding means, and resilient means secured to one of said housingand said reflector at a position generally opposite said reflectoraperture, said resilient means engaging an adjacent portion of the otherof said housing and said reflector for detachably securing another endof said reflector within said housing and for urging said reflectoragainst said reflector sealing means to seal said reflector aperturewith said lampholding means.

14. In a luminaire, the combination comprising an ovate shaped housinghaving a bottom opening, an ovate shaped open bottom reflector readilydetachably mounted in said housing, an aperture formed in one end ofsaid reflector, lampholding means mounted in said housing and extendingthrough said aperture and supponting the one end of said reflector,sealing means located between the reflector and the lampholdingmeans,and resilient means for detachably seciiring another end of saidreflector within said housing and for urging said reflector against saidsealing means to seal said reflector aperture with said'lampholdingmeans.

15. In a lurninaire, the combination comprising a housing having abottom opening, a reflector having a bottom opening, said reflectorbeing mounted in said housing and having the same general Configurationas said housing, said reflector having an outwardly extending flangelocated adjacent its opening, a slipfltter and wiring container portionhaving an open bottom and extending from said housing so as tocommunicate therewith, said reflector having an aperture communicatingwith said container portion, lampholding means mounted within saidcontainer portion and extending through said reflector aperture, sealingmeans located around the periphery of said lampholding means, saidsealing means having a flat radial side portion which is engaged betweensaid reflector and said larnpholding means when the reflector in itsoperative position so as to seal said aperture, a refractor havingupward opening and an outwardly extending flange adjacently surroundingsaid opening, said reflector and'refiractor flanges being substantiallycoextensive, and means for clamping said flanges together so as to sealsaid jrefractor to said reflector.

1 6. Ina luminaire, the combination comprising a generally ovate shapedhousing provided with a bottom opening, an ovate shaped reflector havinga bottom opening 39 in secured to and generally located within saidhousings eflec o h n an u p ope in generally coextensive with the bottomopening of said reflector, an

'elongated retaining ring hingedly secured at one of its ends to saidlnrninaire, said refractor mounted in said retaining ring, matingflanges around the peripheries of the openingsof both said reflector andsaid refractor, means disposed to engage said retaining ring generallyat its'ot-her end to said'lumin'aire for securing 'said retain- 12 ingring in its operative closed position, means for sealing'ly engagingsaid mating flanges in said operative closed position to preventnnde'sirable' material from enter ing therebetween.

'17. In a luminaire, the combination comprising an elongated generallydish-shaped housing provided with a bottom opening and having aninverted generally U-shaped hood portion joined adjacent one end of saidhousing, a generally dish-shaped reflector having a bottom opening andbeing secured to and located within the dish-shaped portion of saidhousing, a refractor having an upper opening generally coextensive withthe bottom opening of said reflector, an elongated retaining ringhingedly secured at one of its ends to the end of said hood memberremote from said reflector, said refractor being mounted in saidretaining ring, mating flanges around the peripheries of the openings of'both said reflector and said refraotor, the outer periphery of saidretaining ring being generally coextensive with the bottom opening ofsaid housing including said hood portion, and means disposed to engagesaid retaining ring generally at its other end to said luminaire forsecuring said retaining ring in its operative closed position, saidmating flanges being brought into a juxtaposed relationship and thebottom opening of said housing and its hood portion being generallyclosed by said retaining ring in the operative closed position thereof.

References Cited in the file of this patent UNITED STATES PATENTS1,240,452 Hotchkin Sept. 18, 1917 1,761,528 Fyrberg June 3, 19302,304,208 Rolph Dec. 8, 1942 2,732,483 Elmer Jan. 24, 1956 2,763,774Beach et a1 Sept. 18, 1956 2,778,929 Loehr Jan. 22, 1957 2,829,243Stonehill Apr. 1, 1958 2,840,690 Harling June 24, 1958 2,849,574 Burnset al Aug. 26, 1958 r err- 1, a."

